Home 7-(4-Fluorobenzylidene)-3-(4-fluorophenyl)-N-phenyl-3,3a,4,5,6,7-hexahydro-2H-indazole-2-carbothioamide–dimethylformamide (2/1), C27H23F2N3S, 0.5(C3H7NO)
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7-(4-Fluorobenzylidene)-3-(4-fluorophenyl)-N-phenyl-3,3a,4,5,6,7-hexahydro-2H-indazole-2-carbothioamide–dimethylformamide (2/1), C27H23F2N3S, 0.5(C3H7NO)

  • Obaid Fahad Aldosari , Bakr F. Abdel-Wahab , Mohammad Hayal Alotaibi , Amany S. Hegazy , Benson M. Kariuki EMAIL logo and Gamal A. El-Hiti ORCID logo EMAIL logo
Published/Copyright: August 17, 2019

Abstract

C27H23F2N3S, 0.5(C3H7NO), monoclinic, C2/c (no. 15), a = 25.1579(10) Å, b = 9.9356(4) Å, c = 20.1799(7) Å, β = 91.741(4)°, V = 5041.8(3) Å3, Z = 8, Rgt(F) = 0.0508, wRref(F2) = 0.1385, T = 296(2) K.

CCDC no.: 1920908

The molecular structure is shown in the figure. Table 1 contains crystallographic data and Table 2 contains the list of the atoms including atomic coordinates and displacement parameters.

Table 1:

Data collection and handling.

Crystal:Colourless needle
Size:0.52 × 0.31 × 0.11 mm
Wavelength:Mo Kα radiation (0.71073 Å)
μ:0.17 mm−1
Diffractometer, scan mode:SuperNova, ω
θmax, completeness:29.9°, >99%
N(hkl)measured, N(hkl)unique, Rint:23341, 6338, 0.035
Criterion for Iobs, N(hkl)gt:Iobs > 2 σ(Iobs), 4290
N(param)refined:345
Programs:CrysAlisPRO [1], SHELX [2], [3], WinGX/ORTEP [4]
Table 2:

Fractional atomic coordinates and isotropic or equivalent isotropic displacement parameters (Å2).

AtomxyzUiso*/Ueq
C10.92723(8)0.1198(3)0.69906(10)0.0697(6)
C20.93112(8)0.2553(3)0.70272(12)0.0826(7)
H20.9630430.2982240.6942120.099*
C30.88650(8)0.3296(2)0.71946(11)0.0707(6)
H30.8885620.4230010.7213730.085*
C40.83934(7)0.26626(18)0.73320(8)0.0496(4)
C50.83759(7)0.1282(2)0.72919(11)0.0642(5)
H50.8061400.0838140.7384690.077*
C60.88153(8)0.0535(2)0.71168(11)0.0729(6)
H60.879713−0.0397630.7086610.087*
C70.79256(7)0.34778(18)0.75499(8)0.0488(4)
H70.7980130.4426510.7437690.059*
C80.78232(7)0.33495(17)0.82986(8)0.0482(4)
H80.8027100.2582670.8475960.058*
C90.72445(7)0.30129(16)0.83089(8)0.0451(4)
C100.69490(7)0.30085(17)0.89248(8)0.0482(4)
C110.71386(8)0.40701(19)0.94150(9)0.0594(5)
H11A0.7038030.3802080.9856070.071*
H11B0.6959190.4911120.9310240.071*
C120.77351(8)0.4304(2)0.94189(9)0.0672(5)
H12A0.7914000.3519260.9604740.081*
H12B0.7821370.5065590.9703090.081*
C130.79426(8)0.4573(2)0.87305(9)0.0618(5)
H13A0.7770770.5363150.8540160.074*
H13B0.8322890.4734630.8757750.074*
C140.72320(7)0.33496(17)0.66250(8)0.0486(4)
C150.63994(7)0.32426(17)0.59232(8)0.0477(4)
C160.65760(7)0.29135(18)0.53006(8)0.0538(4)
H160.6924160.2626830.5248760.065*
C170.62300(8)0.30144(19)0.47552(9)0.0599(5)
H170.6349090.2803240.4335960.072*
C180.57145(9)0.3422(2)0.48264(10)0.0663(5)
H180.5485040.3476880.4457330.080*
C190.55367(8)0.3748(2)0.54429(11)0.0674(5)
H190.5185980.4016250.5492650.081*
C200.58811(7)0.3677(2)0.59897(9)0.0579(4)
H200.5763290.3922570.6405000.070*
C210.65562(7)0.21164(18)0.89975(8)0.0514(4)
H210.6497260.1541490.8639120.062*
C220.62046(7)0.19049(18)0.95540(9)0.0530(4)
C230.60158(7)0.0611(2)0.96603(10)0.0612(5)
H230.609984−0.0067930.9364190.073*
C240.57063(8)0.0307(2)1.01942(11)0.0741(6)
H240.558494−0.0564401.0263490.089*
C250.55852(9)0.1322(3)1.06145(12)0.0772(6)
C260.57458(9)0.2611(2)1.05289(12)0.0783(6)
H260.5649400.3281701.0823670.094*
C270.60562(8)0.2909(2)0.99935(11)0.0667(5)
H270.6167050.3790360.9926200.080*
N10.74100(5)0.30100(14)0.72527(6)0.0477(3)
N20.70220(5)0.28201(14)0.77347(6)0.0477(3)
N30.67126(6)0.30801(16)0.65128(7)0.0529(4)
H3A0.6547790.2764860.6846140.063*
S10.76395(2)0.40457(7)0.60911(2)0.0751(2)
F10.97061(5)0.04890(18)0.68091(7)0.1032(5)
F20.52817(7)0.10352(17)1.11445(9)0.1232(6)
C28a0.5459(3)0.1446(7)0.7054(3)0.1081(19)
H28a0.5351660.1306590.6614170.130*
C29a0.5241(3)0.1818(9)0.8189(3)0.120(2)
H29Aa0.5257800.2753150.8306220.180*
H29Ba0.5587540.1422670.8244130.180*
H29Ca0.4997210.1363740.8469790.180*
C30a0.4526(3)0.1886(10)0.7310(5)0.154(4)
H30Aa0.4511600.2103820.6846070.230*
H30Ba0.4375350.2609540.7556920.230*
H30Ca0.4328080.1075900.7382320.230*
N4a0.5064(7)0.1690(4)0.7523(8)0.091(2)
O1a0.59251(18)0.1408(6)0.7192(3)0.1327(18)
  1. aOccupancy: 0.5.

Source of material

The title compound was synthesized from reaction of equimolar quantities of 7-(4-fluorobenzylidene)-3-(4-fluorophenyl)-3,3a,4,5,6,7-hexahydro-2H-indazole and phenyl isothiocyanate in anhydrous ethanol under reflux for 2 h. The crude product was collected by filtration, washed with ethanol and recrystallized from dimethylformamide to give the title compound in 82% yield as colourless crystals (Mp. 228–230 °C).

Experimental details

All hydrogen atoms were placed in calculated positions and refined using a riding model. The N—H bond was fixed at 0.86 Å (AFIX 43 instruction in SHELXL [2], [3]), with displacement parameters set to 1.2 times Ueq(N). C—H distances for sp2 carbon atoms were set to 0.93 Å (AFIX 43) and Uiso(H) set to 1.2 times Ueq(C). The methine C—H distance was set to 0.98 Å (AFIX 13) and Uiso(H) set to 1.2 times Ueq(C). The methylene C—H distances was set to 0.97 Å (AFIX 23) and Uiso(H) set to 1.2 times Ueq(C). Methyl C—H distances were set to 0.96 Å and Uiso(H) set to 1.5 times Ueq(C) with the group allowed to rotate about the C—C bond (AFIX 137). The dimethylformamide molecule lies on a two-fold rotation axis and was refined with restrained geometry and displacement parameters (DFIX, SIMU).

Comment

Pyrazole containing compounds are an essential core scaffold in many natural products and show various biological activities [5], [6], [7]. Several synthetic pathways have been reported for the synthesis of pyrazoles [8], [9], [10].

The asymmetric unit consists of one molecule of the title compound and half a molecule of dimethyl formamide solvent located on a two-fold rotation axis (see the figure). Geometric parameters are all in the expected ranges [11]. The molecule consists of two fluorophenyl groups [A (F1, C1—C6) and D (F2, C22—C26)], a hexahydroindazolyl group [B (N1, N2, C7—C13)] and a phenyl group [C (C15–C20)]. The cyclohexane segment (C8—C13) of B is in chair conformation. The pyrazolyl ring of B assumes an envelop conformation although it is nearly planer with the flap (C7) deviating by only 0.132(3) Å from the plane of the rest of the ring (C8, C9, N1, N2). An intramolecular contact is observed (N3—H3A⋯N2) and the same hydrogen atom also interacts with the DMF solvent molecule (N3—H3A⋯O1). C—H⋯F and C—H⋯S interactions form an extended network in the crystal structure. Edge-to-face interaction occurs between the phenyl (C) and fluorophenyl (D) rings with a centroid-to-centroid distance of 5.1 Å.

Acknowledgements

The authors would like to thank the Deanship of Scientific Research at Majmaah University for supporting this work under Project Number No. 1440-127, and to Cardiff University for continued support.

References

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Received: 2019-04-09
Accepted: 2019-06-05
Published Online: 2019-08-17
Published in Print: 2019-11-26

©2019 Obaid Fahad Aldosari et al., published by De Gruyter, Berlin/Boston

This work is licensed under the Creative Commons Attribution 4.0 Public License.

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  65. Crystal structure of (2,2′-bipyridyl)bis(4-chlorobenzyl)dichloridotin(IV), C24H20Cl4N2Sn
  66. Crystal structure of N-methyl-N-phenyl(methylsulfanyl)carbothioamide, C9H11NS2
  67. Crystal structure of 4-phenylpiperazin-1-ium (4-phenylpiperazin-1-yl)carbothioylsulfanide, [C10H15N2][C11H13N2S2]
  68. Crystal structure of catena-{di-aqua-sodium [n-butyl(methyl)carbamothioyl]sulfanide}n, [C6H16NNaO2S2]n
  69. Crystal structure of (2-([1,1-bis(hydroxymethyl)-2-oxyethyl]iminomethyl)-5-(n-decyl)phenolato)-dimethyl-tin(IV), C23H39NO5Sn
  70. Crystal structure of 4-chloro-N′-[(1E)-(3-ethoxy-2-hydroxyphenyl)methylidene]benzohydrazide – a Z′ = 3 structure, C16H15ClN2O3
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